- TfOH-Catalyzed Reaction of Bispropargyl Alcohols with 1,3-Dicarbonyl Compounds
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A transition-metal-free efficient method for the preparation of 1,2,3-trisubstituted benzenes from bispropargyl alcohols and 1,3-dicarbonyl compounds has been developed. The reaction of bispropargyl alcohol with 1,3-dicarbonyl compound proceeds through [3,3]-rearrangement, 6π-electrocyclization, and unexpected Csp3-Csp2 regioselective σ-bond cleavage processes.
- Teng, Qinghu,Mo, Shikun,Pan, Jiankun,Wu, Na,Wang, Hengshan,Pan, Yingming
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- Surface-assisted organic synthesis of hyperbenzene nanotroughs
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A hexagonal macrocycle consisting of 18 phenylene units (hyperbenzene) was synthesized on a Cu(111) surface in ultrahigh vacuum by Ullmann coupling of six 4,4′′-dibromo-m-terphenyl molecules. The large diameter of 21.3 A and the ability to assemble in arrays makes hyperbenzene an interesting candidate for a nanotrough that could enclose metallic, semiconducting, or molecular quantum dots. Copyright
- Fan, Qitang,Wang, Cici,Han, Yong,Zhu, Junfa,Hieringer, Wolfgang,Kuttner, Julian,Hilt, Gerhard,Gottfried, J. Michael
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